One word:

SUBSTANCE.

That's all that matters.

Kinda but not because of that.

It'll be something else - 'agents' paradigm will evolve and look nothing like it does today. After OAI etc crash and burn that is.

Yep its a shame whats happened to HN. Real pity.

In the super long run most websites will disappear - e.g. look at what Facebook/Instagram already did.

Correct.

Whats going to happen is a) easier to shop around for agencies b) expectations of agencies to go up c) deflation etc etc.

I thought HN of all places would understand this generally, right?

But no.. lol. This place has limited deep thinker's who understand why humans prefer what they do.